CN212583046U - Open-web steel-concrete composite structure lattice column - Google Patents

Open-web steel-concrete composite structure lattice column Download PDF

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Publication number
CN212583046U
CN212583046U CN202021246848.XU CN202021246848U CN212583046U CN 212583046 U CN212583046 U CN 212583046U CN 202021246848 U CN202021246848 U CN 202021246848U CN 212583046 U CN212583046 U CN 212583046U
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connecting plate
steel
web
lattice column
plate
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王狄龙
吴建军
俞福利
薛建操
王东方
李孝渊
符金根
罗晓玲
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Hangzhou Xiwu Integrated Construction Technology Co ltd
Zhejiang Shengxin Construction Co ltd
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Hangzhou Xiwu Integrated Construction Technology Co ltd
Zhejiang Shengxin Construction Co ltd
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Abstract

The utility model relates to a hollow steel-concrete composite structure lattice column, which comprises two T-shaped flange plates with webs arranged oppositely, a truss angle steel arranged obliquely is welded between the webs of the two T-shaped flange plates, two sides of the truss angle steel are respectively provided with a tie bar, and two ends of the tie bar are welded on the inner wall of the flange of the T-shaped flange plate; the tip of T type flange board is equipped with the connecting plate, the connecting plate is on a parallel with the web setting of T type flange board and welds on the web, the middle part perpendicular to connecting plate of connecting plate is equipped with the end sealing board, the end sealing board welds on the edge of a wing inner wall of T type flange board, the end sealing board separates the connecting plate into the linkage segment in the outside and the inboard extension segment, set up the pilot hole on the linkage segment, it indulges the muscle to set up a plurality of atress between truss angle steel and the drawknot muscle, the muscle perpendicular to drawknot muscle direction setting is indulged in the atress, the tip welding of muscle is indulged in the atress is on the extension segment of connecting plate, the cavity that closes is enclosed with the end sealing board.

Description

Open-web steel-concrete composite structure lattice column
Technical Field
The utility model relates to an assembly type structure field, concretely relates to formula steel-mix integrated configuration lattice column of void.
Background
China vigorously pushes the traditional building to be transformed into an industrialized building. In the traditional building, most of work needs to be finished on a construction site, and the problems of long construction period, serious environmental pollution, large stacking field, shortage of constructors and the like become barriers for inhibiting the progress of the building industry. The project of the fierce mountain and the leishen mountain which are glorious in the new coronavirus epidemic situation in the early 2020 enables the related technologies of the assembly type building to come to the public, and the characteristics of industrial production, rapid deployment, immediate use and the like are impressive, so that a new market is developed.
In civil buildings, the existing mature assembly type building structure system mainly comprises a PC structure, a steel structure and a steel-concrete combined structure, the PC structure is widely applied, but the PC structure has the problems of poor reliability of vertical splicing nodes and the like and is subject to scaling. Although the steel structure has a reliable node structure and the construction quality is easy to guarantee, the structure has the problems of poor sound insulation, poor heat insulation, low rigidity, poor comfort and the like, and fire prevention and corrosion prevention treatment needs to be additionally carried out, which is a difficult problem to overcome in residential buildings. The steel-concrete composite structure has the advantages of the two structures, and a partial structure system such as a partially-coated concrete composite structure (PEC structure) is coated with concrete in a large area due to the main body of the PEC structure and is provided with connecting nodes the same as those of a steel structure, so that the defects of the steel structure and the PC structure are overcome perfectly, but the problem of high steel consumption is still solved.
Based on the above thought, it is proposed to provide a low steel content and economical open-web steel-concrete composite structure lattice column, and this scheme is generated accordingly.
SUMMERY OF THE UTILITY MODEL
In order to realize the above purpose, the utility model discloses the technical scheme who adopts is:
a hollow type steel-concrete composite structure lattice column comprises two T-shaped flange plates, wherein webs of the two T-shaped flange plates are opposite, obliquely arranged truss angle steel or truss reinforcing steel is welded between the webs of the two T-shaped flange plates, a plurality of tie bars are respectively arranged on two sides of the truss angle steel or truss reinforcing steel, and two ends of each tie bar are welded on the inner wall of a flange of each T-shaped flange plate; the tip of T type flange board is equipped with the connecting plate, the connecting plate is on a parallel with the web setting and the welding of T type flange board on the web, the middle part perpendicular to connecting plate of connecting plate is equipped with the end plate, the end plate welding is on the edge of a wing inner wall of T type flange board, the end plate side welding is on the connecting plate, the end plate separates the linkage segment in the outside and the inboard extension section with the connecting plate, set up the pilot hole on the linkage segment, it indulges the muscle to set up a plurality of atress between truss angle steel or truss reinforcing bar and the lacing wire, the muscle perpendicular to lacing wire direction setting is indulged in the atress, the tip welding of muscle is indulged in the atress is on the extension section of connecting plate, the cavity that closes is enclosed with the end.
Furthermore, bending parts are arranged at two ends of the tie bar and welded on the inner wall of the flange of the T-shaped flange plate by fillet welds.
Further, the length of the welding seam during fillet welding is five times of the diameter of the tie bar.
Furthermore, the stressed longitudinal ribs and the tie ribs are bound and fixed together.
Furthermore, a joint web plate is arranged on the outer side of the joint web plate, one end of the joint web plate is fixedly connected with the lattice column, the other end of the joint web plate extends outwards to form a steel corbel, and a joint stiffened plate is arranged at the joint of the joint web plate and the lattice column.
Furthermore, the tie bars are arranged at intervals, the arrangement distance of the tie bars close to one end of the connecting plate is small, and the arrangement distance of the tie bars far away from the connecting plate is large.
The utility model forms the hollow steel skeleton structure by connecting the pair of oppositely arranged T-shaped flange plates and the end connecting plate, the whole steel skeleton is in a hollow structure in large area except the middle of two ends, the steel consumption is greatly reduced, the weight of the whole steel skeleton is lighter and convenient to transport, and the manufacturing cost and the transportation cost can be obviously reduced; the shear resistance of the section is improved by arranging inclined truss angle steel or reinforcing steel bars inside the steel skeleton; the tie bars are welded on the two sides of the angle steel of the truss, so that the connection strength of the poured concrete and the steel plate is improved, and the shear-resistant bearing capacity of the cross section is also born.
Drawings
FIG. 1 is a schematic view of a steel skeleton structure of a lattice column of a hollow steel-concrete composite structure in an embodiment;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is a schematic structural diagram of a node at the joint of a lattice column and a beam of the hollow steel-concrete composite structure;
fig. 4 is a schematic view of fig. 3 after concrete is poured.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The embodiment discloses a lattice column with a hollow steel-concrete composite structure, which has a structure shown in fig. 1 to 4 and mainly comprises two T-shaped flange plates 1 which are arranged at a certain distance and have web plates oppositely. The T-shaped flange plate 1 can be directly made of hot-rolled T-shaped steel or made of wide-flange H-shaped steel by cutting and dividing the wide-flange H-shaped steel into two T-shaped steels from a web. If there is no suitable section steel section, it can also take the form of a welding element, namely: choose for use two vertical relative settings of steel sheet as the edge of a wing, then set up a connecting plate respectively at the both ends of two steel sheets, weld the connecting plate respectively on both sides steel sheet inner wall, thereby form the utility model discloses the basic formula steel skeleton that is open to the sky of lattice column.
This embodiment directly adopts a pair of T shaped steel as T type flange board 1, and the both ends of two T type flange boards 1 are respectively through a connecting plate 2 welded fastening this moment, and connecting plate 2 is unanimous with T type flange board 1's web direction, and the both sides of connecting plate 2 are directly in the same place with the web welding of both sides T type flange board 1. The middle position of the connecting plate 2 is provided with an end sealing plate 7, the end sealing plate 7 is vertical to the flange of the T-shaped flange plate 1, the end sealing plate 7 is vertical to the connecting plate 2, the end sealing plate 7 is welded on the inner wall of the flange of the T-shaped flange plate 1, and one side of the end sealing plate 7 is welded and fixed with the connecting plate 2. The head plate 7 separates into two sections with connecting plate 2, is located being the linkage segment in the outside, is located inboard for extending section 3, and the effect of head plate 7 plays the regional effect of dividing concreting, is the cavity that needs later stage concreting to the inboard cavity of head plate 7, to the longitudinal connection between the outside mainly used lattice column of head plate 7, so set up a plurality of pilot holes on the linkage segment of connecting plate 2.
In the hollow cavity on the inner side of the end sealing plate 7, truss angle steel 5 is welded between the web plates of the two T-shaped flange plates 1, the truss angle steel 5 is obliquely arranged, and the inclination directions of two vertically adjacent angle steels are opposite. The truss angle steel 5 can also be replaced by truss reinforcing steel bars, and the structural arrangement is completely the same. The truss angle steel 5 has the effects of ensuring cooperative work between flanges of the T-shaped flange plates 1 on two sides, playing a role of bending a reinforcing steel bar and improving the shearing resistance of the cross section. The two sides of the truss angle steel 5 are respectively provided with a plurality of tie bars 4 arranged at certain intervals, the direction of the lattice column framework shown in fig. 1 after being erected is observed, the tie bars 4 are arranged along the horizontal direction, the two ends of the tie bars 4 are bent inwards to form bending parts, the bending parts are welded on the inner wall of the flange of the T-shaped flange plate 1 through angle welds, and the length of the weld joints during welding is five times the length of the diameter of the tie bars 4. Due to the existence of the tie bars 4 at the two sides, the whole steel skeleton can form tight connection with concrete after the concrete is poured, and bears the shearing-resistant bearing capacity of the section. When the tie bars 4 are arranged, the distance between the plurality of tie bars 4 close to one end of the connecting plate 2 is small, the arrangement is dense, the distance between the plurality of tie bars 4 far away from the connecting plate 2 is large, and the arrangement is sparse. A plurality of stressed longitudinal ribs 6 are longitudinally penetrated into a cavity between the truss angle steel 5 and the tie rib 4, the stressed longitudinal ribs 6 are arranged in a direction perpendicular to the tie rib 4, the end parts of the stressed longitudinal ribs 6 are welded on the extension section 3 of the connecting plate 2, and the extension section 3 serves as a lap rib plate at the moment; the stressed longitudinal ribs 6 are bound and fixed with each tie bar 4, so that the continuity of stress is ensured.
The hollow steel skeleton connection of the whole lattice column is completed in a factory according to the structure, the lattice column can be directly transported to a construction site, then concrete is poured into a cavity enclosed by the flanges of the two T-shaped flange plates 1 and the head plate 7 to form the lattice column with a steel-concrete composite structure, and the lattice column can also be pre-cast and molded in the factory and then transported to the construction site. When the pre-pouring mode in a factory is adopted, the assembled steel skeleton member is firstly placed on a mould table or other materials easy to demould to lie flat, then concrete is poured and vibrated fully for one-time forming, particularly 3 parts of the extension section are vibrated fully to prevent bubbles from silting to form a cavity, demoulding and stacking are carried out after maintenance is finished, and delivery transportation can be carried out after acceptance is finished.
In the lattice column provided by the embodiment, axial pressure is commonly borne by all longitudinal stress components on the cross section, bending resistance bearing capacity in the direction of the strong axis is mainly provided by the T-shaped flange plates 1 on the two sides of the strong axis, bending resistance bearing capacity in the direction of the weak axis is mainly provided by the longitudinal stress ribs 6 on the two sides of the weak axis, shear resistance bearing capacity in the direction of the strong axis is mainly borne by the tie ribs 4 on the two sides and the plate ribs perpendicular to the flange of the T-shaped flange plates 1 on the two sides of the strong axis, and shear resistance bearing capacity in the direction of the weak axis is mainly borne by the flange parts of the T-shaped flange plates 1 on the two sides of the strong axis. The steel-concrete composite structure lattice column solves the problem of fire prevention treatment of the outer surface of a steel structure due to the fact that concrete is covered in a large area, and has a certain guarantee on heat preservation and sound insulation effects.
When the lattice column with the steel-concrete composite structure is connected with the beam, as shown in fig. 3, a rib plate 8 needs to be arranged at the position where the lattice column is connected with the beam, the rib plate 8 is arranged in parallel with the direction of the connecting plate 2 at the end part, and the rib plate 8 is welded on a web plate of the T-shaped flange plate 1 and is mainly used for fixing the stressed longitudinal rib 6. A node web 9 needs to be welded and fixed on the outer side of the rib lapping plate 8, one end of the node web 9 is welded and fixed with the lattice column, the other end of the node web 9 extends outwards to form a steel corbel 11, and the steel corbel 11 is used for being connected with the beam; in order to strengthen the strength of the connecting node, the upper end and the lower end of the node web 9 are respectively provided with a node stiffening plate 10 for strengthening.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a formula steel-mix integrated configuration lattice column that open web which characterized in that: the steel plate truss structure comprises two T-shaped flange plates, wherein webs of the two T-shaped flange plates are opposite, truss angle steel or truss reinforcing steel bars which are obliquely arranged are welded between the webs of the two T-shaped flange plates, a plurality of tie bars are respectively arranged on two sides of the truss angle steel or truss reinforcing steel bars, and two ends of each tie bar are welded on the inner wall of a flange of each T-shaped flange plate; the tip of T type flange board is equipped with the connecting plate, the connecting plate is on a parallel with the web setting and the welding of T type flange board on the web, the middle part perpendicular to connecting plate of connecting plate is equipped with the end plate, the end plate welding is on the edge of a wing inner wall of T type flange board, the end plate side welding is on the connecting plate, the end plate separates the linkage segment in the outside and the inboard extension section with the connecting plate, set up the pilot hole on the linkage segment, it indulges the muscle to set up a plurality of atress between truss angle steel or truss reinforcing bar and the lacing wire, the muscle perpendicular to lacing wire direction setting is indulged in the atress, the tip welding of muscle is indulged in the atress is on the extension section of connecting plate, the cavity that closes is enclosed with the end.
2. The open-web steel-concrete composite structural lattice column according to claim 1, wherein: the two ends of the tie bar are provided with bending parts, and the bending parts are welded on the inner wall of the flange of the T-shaped flange plate by fillet welds.
3. The open-web steel-concrete composite structural lattice column according to claim 2, wherein: the length of the welding seam during fillet welding is five times of the diameter of the tie bar.
4. The open-web steel-concrete composite structural lattice column according to claim 1, wherein: and the stressed longitudinal ribs and the tie ribs are bound and fixed together.
5. The open-web steel-concrete composite structural lattice column according to claim 1, wherein: the position that lattice column and roof beam are connected is equipped with and takes the gusset, takes gusset and connecting plate direction parallel arrangement, takes the gusset welding on the web of T type flange board, takes the outside of gusset to be equipped with the node web, the one end and the lattice column fixed connection of node web, the outside formation steel corbel that extends of node web other end, node web and lattice column junction are equipped with node stiffening plate.
6. The open-web steel-concrete composite structural lattice column according to claim 1, wherein: the tie bars are arranged at intervals, the arrangement distance of the tie bars close to one end of the connecting plate is small, and the arrangement distance of the tie bars far away from the connecting plate is large.
CN202021246848.XU 2020-07-01 2020-07-01 Open-web steel-concrete composite structure lattice column Active CN212583046U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021246848.XU CN212583046U (en) 2020-07-01 2020-07-01 Open-web steel-concrete composite structure lattice column

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021246848.XU CN212583046U (en) 2020-07-01 2020-07-01 Open-web steel-concrete composite structure lattice column

Publications (1)

Publication Number Publication Date
CN212583046U true CN212583046U (en) 2021-02-23

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ID=74654328

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021246848.XU Active CN212583046U (en) 2020-07-01 2020-07-01 Open-web steel-concrete composite structure lattice column

Country Status (1)

Country Link
CN (1) CN212583046U (en)

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